A group of 50-year-old adults is asked to think about their high school classmates. Although they have difficulty recalling their classmates, when presented with their yearbooks they can recognize about percent of their pictures and names.

answer; attention;

answer; psychological influences;

in order to keep competitors from increasing or decreasing the prices they may establish, usa in the period of 70s set very democratic price - abut 1 dollar per gasoline so that their offer will be more affordable and attractive.